Completely agree with you - don't form a "comfort zone" with your strengths. There's always always room for improvement.

I want to continue to become a better writer. I have improved since joining Steemit in June 2017, but I still have a lot of areas in which I need to grow.

You are a good writer! Let me put it this way, if you compete with the trending page gurus on the basis of pure content quality(only, not with their super-high SP), you will give them a run for their money!